98789993 has 4 divisors (see below), whose sum is σ = 98979408. Its totient is φ = 98600580.

The previous prime is 98789983. The next prime is 98790007. The reversal of 98789993 is 39998789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39998789 = 421 ⋅95009.

It is a cyclic number.

It is not a de Polignac number, because 98789993 - 2¹⁰ = 98788969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98789983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93923 + ... + 94968.

It is an arithmetic number, because the mean of its divisors is an integer number (24744852).

Almost surely, 2^98789993 is an apocalyptic number.

It is an amenable number.

98789993 is a deficient number, since it is larger than the sum of its proper divisors (189415).

98789993 is a wasteful number, since it uses less digits than its factorization.

98789993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189414.

The product of its digits is 8817984, while the sum is 62.

The square root of 98789993 is about 9939.3155196925. The cubic root of 98789993 is about 462.2791629414.

The spelling of 98789993 in words is "ninety-eight million, seven hundred eighty-nine thousand, nine hundred ninety-three".